chore(CI): add time sleep for relup test

.ci/fvt_tests/relup.lux

@@ -131,6 +131,7 @@
 [shell bench]
     ???publish complete
     ??SH-PROMPT:
+    !sleep 5
     !curl http://127.0.0.1:8080/counter
     ???{"data":300,"code":0}
     ?SH-PROMPT